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Stinging Nettle

Herb
Cool-season herbs in early spring and fall; tender herbs after the last frost.
Full sun to part shade

Also known as: Urtica dioica · Common Nettle

Good to know

Causes skin burns — handle with care

Touching this plant causes painful rashes or blistering burns for most people — the reaction can last for weeks and gets worse in sunlight. Wear gloves, long sleeves and eye protection, wash tools and clothes afterwards, and never burn the cuttings: the smoke is dangerous to breathe.

When & where

Season
Cool-season herbs in early spring and fall; tender herbs after the last frost.
USDA zones
Annual herbs grow in any zone in summer; perennial herbs are usually hardy in zones 5–9.
Sun
Full sun to part shade
Start indoors
6–8 weeks before last frost.
Direct sow outdoors
After the last frost once soil reaches 60°F (16°C).
Days to harvest
30–60 days to first cutting.

Germination

Germination time
14–42 days
Soil temperature
65–75°F (18–24°C)

Spacing & depth

Sow depth
1/4" (6 mm)
Seed spacing
Sow according to species needs
Mature plant spacing
8–18 in (20–45 cm) apart depending on the herb — basil and parsley 10–12 in, sage and rosemary 24–36 in.
Row spacing
N/A — space by mature width

How to plant

Sow seed in well-drained mix at the recommended depth. Keep evenly moist and provide bright light after germination. Harden off before transplanting outdoors.

Pre-sow treatment

Cold stratification

Sow on surface; 30 days cold stratification improves germination.

Grower's tip

Stinging Nettle (Urtica dioica) — nutritious perennial herb; handle with gloves to avoid stinging hairs.

Soil preferences

Soil type

Light, well-drained loam. Most culinary herbs suffer in soggy soil.

pH range

6.0–7.5 (neutral)

Amendments

A single fork of finished compost at planting is plenty — over-feeding weakens flavor.

Watering

Frequency

Consistent moisture while young; let the top inch dry between waterings once established.

Method

Water at the base in the morning to keep leaves dry and prevent mildew.

Over vs. under

Overwatered: yellow lower leaves, damp-smelling soil, wilt that doesn't rebound. Underwatered: crispy tips, purple stems, sudden bolting.

Top-water or bottom-water?

Either works — Bottom-water seedlings and potted herbs (set the pot in a tray of water 10–15 min, then drain). Once established, top-water at the soil line. Keep foliage dry on Mediterranean herbs (rosemary, sage, thyme, lavender, oregano) to prevent mildew.

Temperature tolerance

Ideal daytime air temp

65–85°F (18–29°C) ideal

Ideal nighttime air temp

55–65°F (13–18°C)

Frost sensitivity

Most annual herbs are frost-tender; perennial herbs (sage, thyme, oregano, mint) tolerate frost once established.

Container growing

Container-suitable?

Yes — great in containers

Recommended pot size

6–10 in (15–25 cm) wide, minimum 6 in deep

Notes

Herbs thrive in pots — group by water needs (Mediterranean herbs on the drier side, basil/parsley/cilantro on the wetter).

Detailed harvesting

Nothing here is harvested for the kitchen. Wear gloves, long sleeves and eye protection for any cutting, and wash tools, clothes and skin afterwards.

Post-harvest storage & preservation

Air-dry small bundles upside-down in a dark airy spot, or freeze chopped in olive oil in ice-cube trays. Store dried leaves whole in a jar; crush just before use.

Culinary, medicinal & other uses

Ornamental only — the sap burns skin. Handle in gloves and long sleeves, and never bring cuttings indoors or into the kitchen.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Mostly insect-pollinated; some (basil, mint) self-pollinate.

Isolation needs

Isolate different varieties of the same species by 150 ft or cage/bag flower heads to keep strains true.

How to save

Let one plant flower fully; harvest brown, dry seed heads into a paper bag; rub free and store dry.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for stinging nettle in your area. These are regional averages — always check your own last-frost forecast before sowing.

My Stinging Nettle notes

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